Matthew Modine

as Jack Robinson

2 episodes

Vanessa Redgrave

as Countess Wilhelmina

2 episodes

Mia Sara

as Ondine

2 episodes

Daryl Hannah

as Thespee

2 episodes

Jon Voight

as Siggy

2 episodes

Richard Attenborough

as Magog

2 episodes

Bill Barretta

as Thunderdell

2 episodes

Honor Blackman

as Jules

2 episodes

Jim Carter

as Odin - Member of the Great Council of Mac Slec

2 episodes

James Corden

as Bran - Thunderdell's Son

2 episodes

JJ Feild

as Young Jack

2 episodes

Jonathan Hyde

as Dussan

2 episodes

Anton Lesser

as Vidas Merlinis

2 episodes

Julia McKenzie

as Jack's Mum

2 episodes

Nicholas Beveney

as Cernos

2 episodes

Roger Blake

as Giant Thor

2 episodes

Mel Cobb

as Journalist

2 episodes

Frank Baker

as Forensic Doctor

2 episodes

Josh Cole

as Operator #1

2 episodes

Richard Cubison

as Curious Patron

2 episodes

Leo Dolan

as Construction Foreman

2 episodes

Tom Ellis

as Bigger Boy #1

2 episodes

Fraser Flintham

as Bigger Boy #2

2 episodes

Oliver Ford Davies

as Dr. Newman

2 episodes

Jerry Harte

as Board Member

2 episodes

Richard Huw

as Jack's Father

2 episodes

Rosalind Knight

as Hag Woman

2 episodes

Joseph Long

as Antonio

2 episodes

Adam Fogerty

as Lead Warrior

2 episodes

Marc Goodhall

as Cavern Guard

2 episodes

Andrew Grainger

as Armed Policeman

2 episodes

Peter Guinness

as Hall Cryer

2 episodes

Sam Halpenny

as Taxi Driver

2 episodes

Edward Highmore

as Playground Dad

2 episodes

Freddie Highmore

as Playground Son

2 episodes

Lisa Kay

as Security Woman

2 episodes

Vincent Marzello

as Sprague

2 episodes

Roger Morlidge

as Construction Worker #2

2 episodes

Carl Pizzie

as Operator #2

2 episodes

David J. Nicholls

as Ragnar

2 episodes

Iain Rogerson

as Guard

2 episodes

Lynda Rooke

as Hostess

2 episodes

Cyril Shaps

as Bent Little Man

2 episodes

Rachel Shelley

as Brunette

2 episodes

Alisdair Simpson

as Paramedic

2 episodes

Lolly Susi

as Miss Gilgrin

2 episodes

Tomas Shepherd

as Six-Year-Old Jack

2 episodes

Craig Stoke

as Limo Driver

2 episodes

Jason Thorpe

as Maitre D'

2 episodes

Jemma Woodman

as Newsreader (voice)

2 episodes